The YakAttack Through Hull Wiring Kit is perfect for installs of fish finders, lighting kits, motors, and anything involving running wiring through the hull of your kayak or boat. This kit is perfect for popular removable pods like the Bonafide Kayaks Dry Pod or Wilderness Systems Flex Pod where fish finders and transducers are commonly mounted. Included are eight rubber inserts with common hole sizes, four blank inserts, two nylon grommets, and two sets of hardware. Hole Diameter Sizes: A -0.166\